Delta Chat vs OnlyU+

Delta Chat is a reliable decentralized instant messenger that is easy and fun to use for friends, family, groups and organizations. Delta Chat is developed by a dedicated FOSS contributor community that jointly releases refinements and new features several times a year, across many stores and platforms world-wide. Features at a glance: • Private. Instant on-boarding without a phone number or other private data. • Friends & Family: Only chat with people you know. Unknown users cannot message or follow you without mutual consent. • Flexible. Supports multiple chat profiles and is easy to setup on multiple devices. • Reliable. Works under bad and adversarial network conditions. • Secure. Audited End-to-End encryption safe against network and server attacks. • Sovereign. Can be run with your own e-mail address or server. • FOSS. Fully Open Source/Free Software, built on Internet Standards.

4UONLY is a private messenger built for exactly one relationship - the one that matters most. Unlike group chats and social feeds, 4UONLY connects you with a single trusted person through end-to-end peer-to-peer technology. No servers store your messages. No algorithms read your words. HOW IT WORKS Pair once with one person using an invite code or QR code. Your connection is direct, encrypted, and private by design. Messages travel peer-to-peer via WebRTC - the same technology used for secure video calls - so they never touch a central server. When both of you agree, a message can be saved locally. Otherwise, it disappears when you close the app. FEATURES - One-to-one pairing: connect with exactly one trusted person - P2P messaging: messages never stored on any server - Messages leave no trace: nothing is saved locally unless your partner explicitly agrees - Auto-clear on close: every message on both devices is permanently deleted each time the app closes - Change your name anytime: update your display name whenever you like; your partner sees the change instantly. Can also change your partner's display name. - Unpair in one tap: break the connection at any moment; all conversation history is deleted immediately with no trace left behind - Encrypted channel: your conversation channel is always secured end-to-end - Voice and video calls: clear, private calls directly between devices - File sharing: send photos and PDFs up to 5 MB - Face ID / Touch ID lock: biometric protection to ensure only you can use the app - Screen capture protection: content is hidden when the screen is being captured or recorded PRIVACY FIRST 4UONLY collects no personal data, not even your IP address. No account required. No phone number. No email. Your pairing information lives only in your device's secure Keychain and never leaves your phone. FREE TRIAL AND PREMIUM Your first 30 days are completely unlimited - no credit card required, no restrictions. After your trial ends: Free tier (always available): - 100 messages per day - 20 minutes of calls per day 4UONLY Premium: - Unlimited messages - Unlimited calls - All future features included Premium pricing: - Monthly: US$1.99 / month - Yearly: US$19.99 / year (save approximately 17%) SUBSCRIPTION TERMS - Payment will be charged to your Apple ID account at confirmation of purchase. - Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. - Your account will be charged for renewal within 24 hours prior to the end of the current period at the same price. - You can manage and cancel your subscription in your App Store account settings at any time after purchase. - Any unused portion of a free trial period will be forfeited when you purchase a subscription. TECHNICAL NOTE 4UONLY uses WebRTC peer-to-peer technology. On some networks, a TURN relay server may be used to establish the connection. Relay traffic is never logged or stored. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/